
Question 7 A 0.73 kg block is placed on a horizontal surface with a coefficient of...
An m = 2.0kg block sits next to a compressed spring with spring constant k = 4.5N/m. The spring is compressed by x = 3.0m. The spring is released and pushes the box along a surface with no friction. Once freely sliding the block transitions to a ramp with an angle 35 above the horizontal. On the ramp the block experiences a constant force of friction with a coefficient of kinetic friction of μ = 0.15. How far along the ramp’s surface does the block...
Problem 2 A block A of 0.5-kg rests on a horizontal, frictionless surface. The block is pressed back against a spring having a constant of k 400 N/m, compressing the spring by 12.0 cm. Then the b sreleased. The incline has a friction coefficient μ-02, and the horizontal surface has no friction. 1. Find the maximum distance d the block travels up the incline if -40 (Position C) 2. How fast is the block moving up when halfway to its...
An object of mass m = 1.70 kg is travelling on a horizontal surface. The coefficient of kinetic friction between the object and the surface is muk = 0.200. The object has speed v = 1 .35 m/s when it reaches x = 0 and encounters a spring. The object compresses the spring a distance d/2, stops instantaneously, and then travels back to x = 0 where it stops completely. Eventually you will be asked to find the spring constant,...
13.2)
A 1.3 -kg block slides along a horizontal surface with a
coefficient of friction μk = 0.274. The block has a speed v = 2.28
m/s when it strikes a massless spring head-on.
a. If the spring has a force constant k = 30.9 N/m, how far is
the spring compressed?
b. What minimum value of the coefficient of static friction,
μs, will assure the spring remains compressed at the maximum
compressed position?
c. If μs is less than...
A 12 kg block is pressed against a spring with spring constant k = 1424 N/m. The spring is normally 65 cm long but the block is pressed against it to compress the spring until it is only 27 cm long. The block is then released and the spring pushes it forward onto a frictionless surface. a)How fast is the block moving immediately after it leaves the spring? b) The mass then slides across a 2.5 m wide surface with...
A block of mass m = 3.5 kg is
on an inclined plane with a coefficient of friction
μ1 = 0.31, at an
initial height h = 0.53 m above
the ground. The plane is inclined at an angle θ =
54°. The block is then compressed against
a spring a distance Δx = 0.11 m
from its equilibrium point (the spring has a spring constant of
k1 = 39 N/m) and
released. At the bottom of the inclined plane...
Problem 2 A 0.5-kg block is pressed a distance d against a horizontal spring of constant 800 N/m. The block sits on a frictionless horizontal surface When the block is released from rest, it slides along the surface, its speed is 1.6 m/s when it leaves the spring (a) Calculate distance d. 4 cm Suppose that the sliding block (speed 1.6 m/s) crosses a rough section of the surface. The leugth of the section is 1m. The block has a...
A block sliding to the right along a horizontal frictional surface has an initial velocity of 12.4 m/s and stops in 110 m due to friction with the surface. Find the acceleration of the block. Find the coefficient of kinetic friction between the block and the surface.
As shown in the figure below, a 2.25-kg block is released from rest on a ramp of height h. When the block is released, it slides without friction to the bottom of the ramp, and then continues across a surface that is frictionless except for a rough patch of width 15.0 cm that has a coefficient of kinetic friction μk = 0.520. Find h such that the block's speed after crossing the rough patch is 4.20 m/s. An object with a...
You push a 4.3 kg block against a horizontal spring, compressing the spring by 16 cm. Then you release the block, and the spring sends it sliding across a tabletop. It stops 69 cm from where you released it. The spring constant is 120 N/m. What is the coefficient of kinetic friction between the block and the table?